Home / 86,949.42-130,400.02-30,782.13

Finding the Fourth Proportional to 86,949.42, 130,400.02 and 30,782.13

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Solution

The fourth proportional to 86,949.42, 130,400.02 and 30,782.13 is: 46,164.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,949.42 : 130,400.02 = 30,782.13 : x
  2. Step 2: Convert to fraction form
    86,949.42/130,400.02 = 30,782.13/x
  3. Step 3: Cross multiply
    86,949.42x = 130,400.02 × 30,782.13
  4. Step 4: Simplify right side
    86,949.42x = 4,013,990,367.64
  5. Step 5: Solve for x
    x = 4,013,990,367.64/86,949.42
  6. Step 6: Final answer
    x = 46,164.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.